百度地图之短串分享
在百度SDK中提供了一个短串分享功能,该功能核心意思就是,当你搜索到一个地址信息时,你可以通过短信、邮件、蓝牙等发给你的好友或者分享到第三方平台,包括空间、微信等等。而接收方可以直接通过收到的链接打开手机上的百度地图客户端或者手机浏览器进行查看,这样就实现了地理位置信息的共享,百度Demo代码如下:
注意:短串分享目前只开放“POI搜索结果分享”(本文默认搜索的是北京市的餐厅)和“反向地理编码结果分享”(本文默认坐标是40.056878,116.308141),Demo只能按默认条件搜索是为方便演示,实际中应该从界面通过输入获取等才更具有灵活性。
介绍短串Activity(ShareDemo):
package com.home;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.View;public class ShareDemo extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_share_demo);}public void startShareDemo(View view) {Intent intent = new Intent(this, ShareDemoActivity.class);startActivity(intent);}}
ShareDemo布局文件(activity_share_demo):
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/white" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:layout_marginTop="36dp" android:text="@string/share_tip" android:textColor="@android:color/black" android:textSize="16sp" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/textView1" android:layout_centerHorizontal="true" android:layout_marginTop="32dp" android:onClick="startShareDemo" android:text="开始体验" /></RelativeLayout>
其中字符串share_tip内容为:
<string name="share_tip">\t\t短串分享是指,用户搜索查询后得到的每一个地理位置结果将会对应一条短串(短链接),用户可以通过短信、邮件或第三方分享组件(如微博、微信等)把短串分享给其他用户从而实现地理位置信息的分享。当其他用户收到分享的短串后,点击短串即可打开手机上的百度地图客户端或者手机浏览器进行查看。\n\n \t\t例如,用户搜索“百度大厦”后通过短信使用短串分享功能把该地点分享给好友,好友点击短信中的短串“http://j.map.baidu.com/XLCrk”后可以调起百度地图客户端或者手机浏览器查看“百度大厦”的地理位置信息。\n\n \t\t目前短串分享功能暂时开放了“POI搜索结果分享”和“反向地理编码结果分享”,日后会开放更多的功能,欢迎广大开发者使用短串分享功能。</string>
主Activity(ShareDemoActivity):
package com.home;import android.app.Activity;import android.content.Intent;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.view.View;import android.widget.Toast;import com.baidu.mapapi.BMapManager;import com.baidu.mapapi.map.ItemizedOverlay;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.OverlayItem;import com.baidu.mapapi.map.PoiOverlay;import com.baidu.mapapi.search.MKAddrInfo;import com.baidu.mapapi.search.MKBusLineResult;import com.baidu.mapapi.search.MKDrivingRouteResult;import com.baidu.mapapi.search.MKPoiInfo;import com.baidu.mapapi.search.MKPoiResult;import com.baidu.mapapi.search.MKSearch;import com.baidu.mapapi.search.MKSearchListener;import com.baidu.mapapi.search.MKShareUrlResult;import com.baidu.mapapi.search.MKSuggestionResult;import com.baidu.mapapi.search.MKTransitRouteResult;import com.baidu.mapapi.search.MKWalkingRouteResult;import com.baidu.platform.comapi.basestruct.GeoPoint;/** * 演示poi搜索功能 */public class ShareDemoActivity extends Activity {private MapView mMapView = null;private MKSearch mSearch = null; // 搜索模块,也可去掉地图模块独立使用// 保存搜索结果地址private String currentAddr = null;// 搜索城市private String mCity = "北京";// 搜索关键字private String searchKey = "餐馆";// 反地理编译点坐标private GeoPoint mPoint = new GeoPoint((int) (40.056878 * 1E6),(int) (116.308141 * 1E6));@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);DemoApplication app = (DemoApplication) this.getApplication();if (app.mBMapManager == null) {app.mBMapManager = new BMapManager(this);app.mBMapManager.init(DemoApplication.strKey,new DemoApplication.MyGeneralListener());}setContentView(R.layout.activity_share_demo_activity);mMapView = (MapView) findViewById(R.id.bmapView);mMapView.getController().enableClick(true);mMapView.getController().setZoom(12);// 初始化搜索模块,注册搜索事件监听mSearch = new MKSearch();mSearch.init(app.mBMapManager, new MKSearchListener() {@Overridepublic void onGetPoiDetailSearchResult(int type, int error) {}/** * 在此处理poi搜索结果 , 用poioverlay 显示 */public void onGetPoiResult(MKPoiResult res, int type, int error) {// 错误号可参考MKEvent中的定义if (error != 0 || res == null) {Toast.makeText(ShareDemoActivity.this, "抱歉,未找到结果",Toast.LENGTH_LONG).show();return;}// 将地图移动到第一个POI中心点if (res.getCurrentNumPois() > 0) {// 将poi结果显示到地图上PoiShareOverlay poiOverlay = new PoiShareOverlay(ShareDemoActivity.this, mMapView);poiOverlay.setData(res.getAllPoi());mMapView.getOverlays().clear();mMapView.getOverlays().add(poiOverlay);mMapView.refresh();// 当ePoiType为2(公交线路)或4(地铁线路)时, poi坐标为空for (MKPoiInfo info : res.getAllPoi()) {if (info.pt != null) {mMapView.getController().animateTo(info.pt);break;}}}}public void onGetDrivingRouteResult(MKDrivingRouteResult res,int error) {}public void onGetTransitRouteResult(MKTransitRouteResult res,int error) {}public void onGetWalkingRouteResult(MKWalkingRouteResult res,int error) {}/** * 在此处理反地理编结果 */public void onGetAddrResult(MKAddrInfo res, int error) {// 错误号可参考MKEvent中的定义if (error != 0 || res == null) {Toast.makeText(ShareDemoActivity.this, "抱歉,未找到结果",Toast.LENGTH_LONG).show();return;}AddrShareOverlay addrOverlay = new AddrShareOverlay(getResources().getDrawable(R.drawable.icon_marka),mMapView, res);mMapView.getOverlays().clear();mMapView.getOverlays().add(addrOverlay);mMapView.refresh();}public void onGetBusDetailResult(MKBusLineResult result, int iError) {}@Overridepublic void onGetSuggestionResult(MKSuggestionResult res, int arg1) {}@Overridepublic void onGetShareUrlResult(MKShareUrlResult result, int type,int error) {// 分享短串结果Intent it = new Intent(Intent.ACTION_SEND);it.putExtra(Intent.EXTRA_TEXT, "您的朋友通过百度地图SDK与您分享一个位置: "+ currentAddr + " -- " + result.url);it.setType("text/plain");startActivity(Intent.createChooser(it, "将短串分享到"));}});}@Overrideprotected void onPause() {mMapView.onPause();super.onPause();}@Overrideprotected void onResume() {mMapView.onResume();super.onResume();}@Overrideprotected void onDestroy() {mMapView.destroy();super.onDestroy();}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);mMapView.onSaveInstanceState(outState);}@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {super.onRestoreInstanceState(savedInstanceState);mMapView.onRestoreInstanceState(savedInstanceState);}private void initMapView() {mMapView.setLongClickable(true);mMapView.getController().setZoom(14);mMapView.getController().enableClick(true);mMapView.setBuiltInZoomControls(true);}public void sharePoi(View view) {// 发起poi搜索mSearch.poiSearchInCity(mCity, searchKey);Toast.makeText(this, "在" + mCity + "搜索 " + searchKey,Toast.LENGTH_SHORT).show();}public void shareAddr(View view) {// 发起反地理编码请求mSearch.reverseGeocode(mPoint);Toast.makeText(this,String.format("搜索位置: %f,%f", (mPoint.getLatitudeE6() * 1E-6),(mPoint.getLongitudeE6() * 1E-6)), Toast.LENGTH_SHORT).show();}/** * 使用PoiOverlay 展示poi点,在poi被点击时发起短串请求. * * @author kehongfeng * */private class PoiShareOverlay extends PoiOverlay {public PoiShareOverlay(Activity activity, MapView mapView) {super(activity, mapView);}@Overrideprotected boolean onTap(int i) {MKPoiInfo info = getPoi(i);currentAddr = info.address;mSearch.poiDetailShareURLSearch(info.uid);return true;}}/** * 使用ItemizevOvelray展示反地理编码点位置,当该点被点击时发起短串请求. * */private class AddrShareOverlay extends ItemizedOverlay {private MKAddrInfo addrInfo;public AddrShareOverlay(Drawable defaultMarker, MapView mapView,MKAddrInfo addrInfo) {super(defaultMarker, mapView);this.addrInfo = addrInfo;addItem(new OverlayItem(addrInfo.geoPt, addrInfo.strAddr,addrInfo.strAddr));}@Overridepublic boolean onTap(int index) {currentAddr = addrInfo.strAddr;mSearch.poiRGCShareURLSearch(addrInfo.geoPt, "分享地址",addrInfo.strAddr);return true;}}}
其布局文件:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <Button android:id="@+id/poishore" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginBottom="2dip" android:layout_marginLeft="2dip" android:layout_marginRight="2dip" android:layout_marginTop="2dip" android:layout_weight="1" android:background="@drawable/button_style" android:onClick="sharePoi" android:padding="10dip" android:text="poi搜索结果分享" /> <Button android:id="@+id/addrshare" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginBottom="2dip" android:layout_marginLeft="2dip" android:layout_marginRight="2dip" android:layout_marginTop="2dip" android:layout_weight="1" android:background="@drawable/button_style" android:onClick="shareAddr" android:text="反向地理编码分享" /> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="点击地图上的搜索结果进行短串分享" /> </LinearLayout> <com.baidu.mapapi.map.MapView android:id="@+id/bmapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:clickable="true" /></LinearLayout>
配置文件及Application类同前文。
附上图片效果: